Why I Am Leaving My Job...

1 month ago:
Me -"I no longer want to work here. I will leave when you find a replacement for me."

2 weeks ago:
Me - "I will finish in two weeks, when the new teacher has had a chance to get settled."

1 week ago:
Me - "My last day here will be Friday the 26th."

Today:
Boss - "So, will you be able to stay till the end of the month?"
Me - "No, my last day is Friday."
Boss - "You won't be coming in on Saturday then?"

headdesk